9796de7e5a318796a6a2ef52b037f1c711c44cea19eae99d1476798ee215df32

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
24/08/2026, 12:18

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General

Target
$PLUGINSDIR/LegacyUpdateNSIS.dll
Size 86KB
Sample260824-pgzabaxeje
SHA256 9796de7e5a318796a6a2ef52b037f1c711c44cea19eae99d1476798ee215df32
MD5 7f00eed7259cf0220445a1116e0ebeba
SHA1 f3f78d4b4d17f965b6405aa71a9b95671ec0f9fe
SHA512 16cd870179a347f53bfa5359cb2c24a66228cb8aee68b125fc1dfc8b707f26eb74189743f21ad8841a0066cf1f76799c2eef9c9012222ac8f6af9864f4f5dfa6
SSDEEP 1536:riW07HDspup3oDh+UKak04xrdoL7SlpyL7Sl:rir7op83oDh+UKa/4xrdofSlQfSl
TLSH
T1D1833A187F7502F1F82B897416F9F26F5E65B321C9578C0BF1010A4AAE43F769B29326
MD5 SHA1 SHA512 SSDEEP TLSH

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Logs\LegacyUpdate.log	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1660	3820	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3820	4468	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LegacyUpdateNSIS.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LegacyUpdateNSIS.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3820
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 656
    3⤵
    - Program crash
    PID:1660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3820 -ip 3820
1⤵
PID:2100

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3820-0-0x0000000074960000-0x0000000074977000-memory.dmp

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